EPPING — The ex-husband of Amanda Warf, the 36-year-old Hampton woman whose body was discovered at an abandoned concrete plant in Exeter last week, said Sunday evening that he was not a part of Warf’s death.

“I have nothing to do with my ex-wife’s death,” Aaron Desjardins said across the street from his home at 67 Railroad Avenue around 7 p.m. last night. “She is the mother of my son.”

Desjardins was smoking a cigarette and using a cane as he gave Foster’s Daily Democrat an interview while members of the State Police major crime unit were searching his home. He said he invited the police to investigate, adding that it was “not a big deal.”

Desjardins said he and Warf were together for seven years before divorcing in February of 2012.

Desjardins said he has given his cell phone, handgun and his pick-up truck to the State Police, “in good faith.”

Desjardins said the police took his truck Saturday. He said he is being questioned because he is the father of Warf’s son and is her ex-husband.

“… They are being thorough and they are doing their jobs and I would take my hat off to them if I had one on,” Desjardins said, later adding the police are questioning him because “they got to weed me out of the suspect pool and that is fine.”

Desjardins said he was in his home last Thursday morning when Warf’s body was found at the plant.

“All morning, I was in my house, with my sister, my wife and my son,” Desjardins said, adding his child is under a year old.

Desjardins said Warf was last living in Hampton with her boyfriend, a California man that she had met online while playing World of Warcraft. According to Desjardins, Warf was just five weeks pregnant when she left with the boyfriend, who moved to New Hampshire in October of 2011. Desjardins said he and Warf were separated at the time.

Having never noticed a change in Warf’s behavior or attitude, he said he thought things were going well for Warf.

“She seemed happy. I was happy. We were happy,” he said, adding the two had come to a full agreement on the custody of their son and were just working out a final parenting plan.

He said he was confident his son was being well taken care of when he was with his mother.

Desjardins said Warf worked for the billing department at Exeter Hospital and had worked at Hair Excitement previously. Desjardins was a chef for many years.

“I have been up front, honest and have opened my home and all of my belongings to the police to prove my innocence,” Desjardins said. “I think that says it all.”

The building Warf was found in had been abandoned for at least two decades, according to the town’s assessor. The facility is located at 2 Hampton Road. The 11.8-acre property shares a border with one of Exeter Hospital’s administrative buildings at 7 Holland Way.

The state’s chief medical examiner, Dr. Thomas A. Andrew, ruled the death of Warf a homicide following an autopsy Friday morning. Police have not released Warf’s cause of death, pending further investigation.

Exeter police, the state fire marshal’s office and the Bureau of Alcohol, Tobacco, Firearms and Explosives are all participating in the homicide investigation into Warf’s death, along with state police and the attorney general’s office.

Anyone with information regarding the incident is asked to contact New Hampshire State Police at 603-271-3636.